Reverse-search in IRB.

You can reverse-search through previously entered statements in IRB by pressing Ctrl-R:

~
 irb
2.1.6 :001  def something_complicated(x,y); x + y; end
 = :something_complicated
2.1.6 :002  quit

~ 10s
 irb
(reverse-i-search)`compli': def something_complicated(x,y); x + y; end

Happy hacking!

Written on March 9, 2016 by ryandevilla